The user facility reported that during priming of the capiox device, there was air coming from arterial outlet.There was no delay in the procedure, the product was changed out and the surgery was completed successfully with no patient effect, there was no blood loss.
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This report is being submitted as follow up no.1 to update the device return date in section d9, update section h3, and to provide the completed investigation results.It was initially reported the actual sample was available; however, it was confirmed not to be available.The actual device was not returned; therefore, an evaluation of the actual device was unable to be conducted.No anomaly was found in the manufacturing records, and it was judged that the issue was not a product problem.Ifu states: do not obstruct gas outlet port.Avoid build up of excess pressure in the gas phase to prevent gaseous emboli entering the blood phase.Pressure in the blood phase should always be higher than that in the gas phase to prevent gaseous emboli entering the blood phase.The gas flow rate should not exceed 20l/min.Excessive gas flow rate will bring about pressure increase in the gas phase, allowing gaseous emboli to enter the blood phase.During recirculation, do not use pulsatile flow and do not stop the blood pump suddenly as these actions may cause gaseous emboli to enter the blood phase from the gas phase due to inertia force.To prevent gaseous emboli from entering the blood phase, make sure that the arterial pump flow rate always exceeds the flow rate of the cardioplegia line.The blood flow rate of the cardioplegia line should not exceed 1l/min.Minimum operating volume in the reservoir is 200ml.Set appropriate blood storage level, relative to venous flow rate, to prevent gaseous emboli passing to patient.Recirculate the priming solution at a rate of 4l/min or higher to facilitate air removal.Failure to remove air from the oxygenator may result in serious injury to the patient.Ensure that the de-airing process is complete prior to initiating bypass.Based on the investigation result, no anomaly was found in the manufacturing record.With no device return the exact cause of the reported event cannot be definitively determined based on the available information.
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